<div class="course-item course-card">
    <div class="course-cover">
        <a href="<%= item.href %> " target="_blank">
            <img 
            src="<%= IMG_BASE_URL+item.posterKey %> " 
            alt="<%= item.courseName %> " 
            class="course-img">
        </a>
    </div>
</div>